Copyright (C) Andrew Bartlett 2001
Copyright (C) Jeremy Allison 2000-2001
Copyright (C) Rafal Szczesniak 2002
+ Copyright (C) Volker Lendecke 2006
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
#undef DBGC_CLASS
#define DBGC_CLASS DBGC_AUTH
-extern DOM_SID global_sid_World;
-extern DOM_SID global_sid_Network;
-extern DOM_SID global_sid_Builtin_Guests;
-extern DOM_SID global_sid_Authenticated_Users;
-
+static struct nt_user_token *create_local_nt_token(TALLOC_CTX *mem_ctx,
+ const DOM_SID *user_sid,
+ const DOM_SID *group_sid,
+ BOOL is_guest,
+ int num_groupsids,
+ const DOM_SID *groupsids);
/****************************************************************************
Create a UNIX user on demand.
if (homedir)
all_string_sub(add_script, "%H", homedir, sizeof(pstring));
ret = smbrun(add_script,NULL);
- DEBUG(3,("smb_create_user: Running the command `%s' gave %d\n",add_script,ret));
+ flush_pwnam_cache();
+ DEBUG(ret ? 0 : 3,("smb_create_user: Running the command `%s' gave %d\n",add_script,ret));
return ret;
}
-/****************************************************************************
- Add and Delete UNIX users on demand, based on NTSTATUS codes.
- We don't care about RID's here so ignore.
-****************************************************************************/
-
-void auth_add_user_script(const char *domain, const char *username)
-{
- uint32 rid;
- /*
- * User validated ok against Domain controller.
- * If the admin wants us to try and create a UNIX
- * user on the fly, do so.
- */
-
- if ( *lp_adduser_script() )
- smb_create_user(domain, username, NULL);
- else {
- DEBUG(10,("auth_add_user_script: no 'add user script'. Asking winbindd\n"));
-
- /* should never get here is we a re a domain member running winbindd
- However, a host set for 'security = server' might run winbindd for
- account allocation */
-
- if ( !winbind_create_user(username, NULL) ) {
- DEBUG(5,("auth_add_user_script: winbindd_create_user() failed\n"));
- rid = 0;
- }
- }
-}
-
-/****************************************************************************
- Create a SAM_ACCOUNT - either by looking in the pdb, or by faking it up from
- unix info.
-****************************************************************************/
-
-NTSTATUS auth_get_sam_account(const char *user, SAM_ACCOUNT **account)
-{
- BOOL pdb_ret;
- NTSTATUS nt_status;
- if (!NT_STATUS_IS_OK(nt_status = pdb_init_sam(account))) {
- return nt_status;
- }
-
- become_root();
- pdb_ret = pdb_getsampwnam(*account, user);
- unbecome_root();
-
- if (!pdb_ret) {
-
- struct passwd *pass = Get_Pwnam(user);
- if (!pass)
- return NT_STATUS_NO_SUCH_USER;
-
- if (!NT_STATUS_IS_OK(nt_status = pdb_fill_sam_pw(*account, pass))) {
- return nt_status;
- }
- }
- return NT_STATUS_OK;
-}
-
/****************************************************************************
Create an auth_usersupplied_data structure
****************************************************************************/
const char *client_domain,
const char *domain,
const char *wksta_name,
- DATA_BLOB lm_pwd, DATA_BLOB nt_pwd,
- DATA_BLOB plaintext,
- uint32 auth_flags, BOOL encrypted)
+ DATA_BLOB *lm_pwd, DATA_BLOB *nt_pwd,
+ DATA_BLOB *lm_interactive_pwd, DATA_BLOB *nt_interactive_pwd,
+ DATA_BLOB *plaintext,
+ BOOL encrypted)
{
DEBUG(5,("attempting to make a user_info for %s (%s)\n", internal_username, smb_name));
- *user_info = malloc(sizeof(**user_info));
- if (!user_info) {
+ *user_info = SMB_MALLOC_P(auth_usersupplied_info);
+ if (*user_info == NULL) {
DEBUG(0,("malloc failed for user_info (size %lu)\n", (unsigned long)sizeof(*user_info)));
return NT_STATUS_NO_MEMORY;
}
DEBUG(5,("making strings for %s's user_info struct\n", internal_username));
- (*user_info)->smb_name.str = strdup(smb_name);
- if ((*user_info)->smb_name.str) {
- (*user_info)->smb_name.len = strlen(smb_name);
- } else {
+ (*user_info)->smb_name = SMB_STRDUP(smb_name);
+ if ((*user_info)->smb_name == NULL) {
free_user_info(user_info);
return NT_STATUS_NO_MEMORY;
}
- (*user_info)->internal_username.str = strdup(internal_username);
- if ((*user_info)->internal_username.str) {
- (*user_info)->internal_username.len = strlen(internal_username);
- } else {
+ (*user_info)->internal_username = SMB_STRDUP(internal_username);
+ if ((*user_info)->internal_username == NULL) {
free_user_info(user_info);
return NT_STATUS_NO_MEMORY;
}
- (*user_info)->domain.str = strdup(domain);
- if ((*user_info)->domain.str) {
- (*user_info)->domain.len = strlen(domain);
- } else {
+ (*user_info)->domain = SMB_STRDUP(domain);
+ if ((*user_info)->domain == NULL) {
free_user_info(user_info);
return NT_STATUS_NO_MEMORY;
}
- (*user_info)->client_domain.str = strdup(client_domain);
- if ((*user_info)->client_domain.str) {
- (*user_info)->client_domain.len = strlen(client_domain);
- } else {
+ (*user_info)->client_domain = SMB_STRDUP(client_domain);
+ if ((*user_info)->client_domain == NULL) {
free_user_info(user_info);
return NT_STATUS_NO_MEMORY;
}
- (*user_info)->wksta_name.str = strdup(wksta_name);
- if ((*user_info)->wksta_name.str) {
- (*user_info)->wksta_name.len = strlen(wksta_name);
- } else {
+ (*user_info)->wksta_name = SMB_STRDUP(wksta_name);
+ if ((*user_info)->wksta_name == NULL) {
free_user_info(user_info);
return NT_STATUS_NO_MEMORY;
}
DEBUG(5,("making blobs for %s's user_info struct\n", internal_username));
- (*user_info)->lm_resp = data_blob(lm_pwd.data, lm_pwd.length);
- (*user_info)->nt_resp = data_blob(nt_pwd.data, nt_pwd.length);
- (*user_info)->plaintext_password = data_blob(plaintext.data, plaintext.length);
+ if (lm_pwd)
+ (*user_info)->lm_resp = data_blob(lm_pwd->data, lm_pwd->length);
+ if (nt_pwd)
+ (*user_info)->nt_resp = data_blob(nt_pwd->data, nt_pwd->length);
+ if (lm_interactive_pwd)
+ (*user_info)->lm_interactive_pwd = data_blob(lm_interactive_pwd->data, lm_interactive_pwd->length);
+ if (nt_interactive_pwd)
+ (*user_info)->nt_interactive_pwd = data_blob(nt_interactive_pwd->data, nt_interactive_pwd->length);
+
+ if (plaintext)
+ (*user_info)->plaintext_password = data_blob(plaintext->data, plaintext->length);
(*user_info)->encrypted = encrypted;
- (*user_info)->auth_flags = auth_flags;
+
+ (*user_info)->logon_parameters = 0;
DEBUG(10,("made an %sencrypted user_info for %s (%s)\n", encrypted ? "":"un" , internal_username, smb_name));
const char *smb_name,
const char *client_domain,
const char *wksta_name,
- DATA_BLOB lm_pwd, DATA_BLOB nt_pwd,
- DATA_BLOB plaintext,
- uint32 ntlmssp_flags, BOOL encrypted)
+ DATA_BLOB *lm_pwd, DATA_BLOB *nt_pwd,
+ DATA_BLOB *lm_interactive_pwd, DATA_BLOB *nt_interactive_pwd,
+ DATA_BLOB *plaintext,
+ BOOL encrypted)
{
const char *domain;
+ NTSTATUS result;
+ BOOL was_mapped;
fstring internal_username;
fstrcpy(internal_username, smb_name);
- map_username(internal_username);
+ was_mapped = map_username(internal_username);
DEBUG(5, ("make_user_info_map: Mapping user [%s]\\[%s] from workstation [%s]\n",
client_domain, smb_name, wksta_name));
and let the "passdb backend" handle unknown users. */
if ( !is_trusted_domain(domain) && !strequal(domain, get_global_sam_name()) )
- domain = get_default_sam_name();
+ domain = my_sam_name();
/* we know that it is a trusted domain (and we are allowing them) or it is our domain */
- return make_user_info(user_info, smb_name, internal_username,
- client_domain, domain, wksta_name, lm_pwd, nt_pwd,
- plaintext, ntlmssp_flags, encrypted);
+ result = make_user_info(user_info, smb_name, internal_username,
+ client_domain, domain, wksta_name,
+ lm_pwd, nt_pwd,
+ lm_interactive_pwd, nt_interactive_pwd,
+ plaintext, encrypted);
+ if (NT_STATUS_IS_OK(result)) {
+ (*user_info)->was_mapped = was_mapped;
+ }
+ return result;
}
/****************************************************************************
const char *smb_name,
const char *client_domain,
const char *wksta_name,
- const uchar *lm_network_pwd, int lm_pwd_len,
- const uchar *nt_network_pwd, int nt_pwd_len)
+ uint32 logon_parameters,
+ const uchar *lm_network_pwd,
+ int lm_pwd_len,
+ const uchar *nt_network_pwd,
+ int nt_pwd_len)
{
BOOL ret;
- NTSTATUS nt_status;
+ NTSTATUS status;
DATA_BLOB lm_blob = data_blob(lm_network_pwd, lm_pwd_len);
DATA_BLOB nt_blob = data_blob(nt_network_pwd, nt_pwd_len);
- DATA_BLOB plaintext_blob = data_blob(NULL, 0);
- uint32 auth_flags = AUTH_FLAG_NONE;
- if (lm_pwd_len)
- auth_flags |= AUTH_FLAG_LM_RESP;
- if (nt_pwd_len == 24) {
- auth_flags |= AUTH_FLAG_NTLM_RESP;
- } else if (nt_pwd_len != 0) {
- auth_flags |= AUTH_FLAG_NTLMv2_RESP;
+ status = make_user_info_map(user_info,
+ smb_name, client_domain,
+ wksta_name,
+ lm_pwd_len ? &lm_blob : NULL,
+ nt_pwd_len ? &nt_blob : NULL,
+ NULL, NULL, NULL,
+ True);
+
+ if (NT_STATUS_IS_OK(status)) {
+ (*user_info)->logon_parameters = logon_parameters;
}
+ ret = NT_STATUS_IS_OK(status) ? True : False;
- nt_status = make_user_info_map(user_info,
- smb_name, client_domain,
- wksta_name,
- lm_blob, nt_blob,
- plaintext_blob,
- auth_flags, True);
-
- ret = NT_STATUS_IS_OK(nt_status) ? True : False;
-
data_blob_free(&lm_blob);
data_blob_free(&nt_blob);
return ret;
const char *smb_name,
const char *client_domain,
const char *wksta_name,
+ uint32 logon_parameters,
const uchar chal[8],
const uchar lm_interactive_pwd[16],
const uchar nt_interactive_pwd[16],
unsigned char local_lm_response[24];
unsigned char local_nt_response[24];
unsigned char key[16];
- uint32 auth_flags = AUTH_FLAG_NONE;
ZERO_STRUCT(key);
memcpy(key, dc_sess_key, 8);
- if (lm_interactive_pwd) memcpy(lm_pwd, lm_interactive_pwd, sizeof(lm_pwd));
- if (nt_interactive_pwd) memcpy(nt_pwd, nt_interactive_pwd, sizeof(nt_pwd));
+ if (lm_interactive_pwd)
+ memcpy(lm_pwd, lm_interactive_pwd, sizeof(lm_pwd));
+
+ if (nt_interactive_pwd)
+ memcpy(nt_pwd, nt_interactive_pwd, sizeof(nt_pwd));
#ifdef DEBUG_PASSWORD
DEBUG(100,("key:"));
dump_data(100, nt_pwd, sizeof(nt_pwd));
#endif
- SamOEMhash((uchar *)lm_pwd, key, sizeof(lm_pwd));
- SamOEMhash((uchar *)nt_pwd, key, sizeof(nt_pwd));
+ if (lm_interactive_pwd)
+ SamOEMhash((uchar *)lm_pwd, key, sizeof(lm_pwd));
+
+ if (nt_interactive_pwd)
+ SamOEMhash((uchar *)nt_pwd, key, sizeof(nt_pwd));
#ifdef DEBUG_PASSWORD
DEBUG(100,("decrypt of lm owf password:"));
dump_data(100, nt_pwd, sizeof(nt_pwd));
#endif
- SMBOWFencrypt((const unsigned char *)lm_pwd, chal, local_lm_response);
- SMBOWFencrypt((const unsigned char *)nt_pwd, chal, local_nt_response);
+ if (lm_interactive_pwd)
+ SMBOWFencrypt((const unsigned char *)lm_pwd, chal,
+ local_lm_response);
+
+ if (nt_interactive_pwd)
+ SMBOWFencrypt((const unsigned char *)nt_pwd, chal,
+ local_nt_response);
/* Password info paranoia */
- ZERO_STRUCT(lm_pwd);
- ZERO_STRUCT(nt_pwd);
ZERO_STRUCT(key);
{
BOOL ret;
NTSTATUS nt_status;
- DATA_BLOB local_lm_blob = data_blob(local_lm_response, sizeof(local_lm_response));
- DATA_BLOB local_nt_blob = data_blob(local_nt_response, sizeof(local_nt_response));
- DATA_BLOB plaintext_blob = data_blob(NULL, 0);
-
- if (lm_interactive_pwd)
- auth_flags |= AUTH_FLAG_LM_RESP;
- if (nt_interactive_pwd)
- auth_flags |= AUTH_FLAG_NTLM_RESP;
-
- nt_status = make_user_info_map(user_info,
- smb_name, client_domain,
- wksta_name,
- local_lm_blob,
- local_nt_blob,
- plaintext_blob,
- auth_flags, True);
+ DATA_BLOB local_lm_blob;
+ DATA_BLOB local_nt_blob;
+
+ DATA_BLOB lm_interactive_blob;
+ DATA_BLOB nt_interactive_blob;
+ if (lm_interactive_pwd) {
+ local_lm_blob = data_blob(local_lm_response,
+ sizeof(local_lm_response));
+ lm_interactive_blob = data_blob(lm_pwd,
+ sizeof(lm_pwd));
+ ZERO_STRUCT(lm_pwd);
+ }
+
+ if (nt_interactive_pwd) {
+ local_nt_blob = data_blob(local_nt_response,
+ sizeof(local_nt_response));
+ nt_interactive_blob = data_blob(nt_pwd,
+ sizeof(nt_pwd));
+ ZERO_STRUCT(nt_pwd);
+ }
+
+ nt_status = make_user_info_map(
+ user_info,
+ smb_name, client_domain, wksta_name,
+ lm_interactive_pwd ? &local_lm_blob : NULL,
+ nt_interactive_pwd ? &local_nt_blob : NULL,
+ lm_interactive_pwd ? &lm_interactive_blob : NULL,
+ nt_interactive_pwd ? &nt_interactive_blob : NULL,
+ NULL, True);
+
+ if (NT_STATUS_IS_OK(nt_status)) {
+ (*user_info)->logon_parameters = logon_parameters;
+ }
+
ret = NT_STATUS_IS_OK(nt_status) ? True : False;
data_blob_free(&local_lm_blob);
data_blob_free(&local_nt_blob);
+ data_blob_free(&lm_interactive_blob);
+ data_blob_free(&nt_interactive_blob);
return ret;
}
}
DATA_BLOB local_lm_blob;
DATA_BLOB local_nt_blob;
NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
- uint32 auth_flags = AUTH_FLAG_NONE;
/*
* Not encrypted - do so.
*/
- DEBUG(5,("make_user_info_for_reply: User passwords not in encrypted format.\n"));
+ DEBUG(5,("make_user_info_for_reply: User passwords not in encrypted "
+ "format.\n"));
if (plaintext_password.data) {
unsigned char local_lm_response[24];
#ifdef DEBUG_PASSWORD
- DEBUG(10,("Unencrypted password (len %d):\n",plaintext_password.length));
- dump_data(100, plaintext_password.data, plaintext_password.length);
+ DEBUG(10,("Unencrypted password (len %d):\n",
+ (int)plaintext_password.length));
+ dump_data(100, (const char *)plaintext_password.data,
+ plaintext_password.length);
#endif
- SMBencrypt( (const char *)plaintext_password.data, (const uchar*)chal, local_lm_response);
+ SMBencrypt( (const char *)plaintext_password.data,
+ (const uchar*)chal, local_lm_response);
local_lm_blob = data_blob(local_lm_response, 24);
/* We can't do an NT hash here, as the password needs to be
case insensitive */
local_nt_blob = data_blob(NULL, 0);
- auth_flags = (AUTH_FLAG_PLAINTEXT | AUTH_FLAG_LM_RESP);
} else {
local_lm_blob = data_blob(NULL, 0);
local_nt_blob = data_blob(NULL, 0);
}
- ret = make_user_info_map(user_info, smb_name,
- client_domain,
- get_remote_machine_name(),
- local_lm_blob,
- local_nt_blob,
- plaintext_password,
- auth_flags, False);
+ ret = make_user_info_map(
+ user_info, smb_name, client_domain,
+ get_remote_machine_name(),
+ local_lm_blob.data ? &local_lm_blob : NULL,
+ local_nt_blob.data ? &local_nt_blob : NULL,
+ NULL, NULL,
+ plaintext_password.data ? &plaintext_password : NULL,
+ False);
data_blob_free(&local_lm_blob);
return NT_STATUS_IS_OK(ret) ? True : False;
const char *client_domain,
DATA_BLOB lm_resp, DATA_BLOB nt_resp)
{
- uint32 auth_flags = AUTH_FLAG_NONE;
-
- DATA_BLOB no_plaintext_blob = data_blob(NULL, 0);
-
- if (lm_resp.length == 24) {
- auth_flags |= AUTH_FLAG_LM_RESP;
- }
- if (nt_resp.length == 0) {
- } else if (nt_resp.length == 24) {
- auth_flags |= AUTH_FLAG_NTLM_RESP;
- } else {
- auth_flags |= AUTH_FLAG_NTLMv2_RESP;
- }
-
return make_user_info_map(user_info, smb_name,
- client_domain,
- get_remote_machine_name(),
- lm_resp,
- nt_resp,
- no_plaintext_blob,
- auth_flags, True);
+ client_domain,
+ get_remote_machine_name(),
+ lm_resp.data ? &lm_resp : NULL,
+ nt_resp.data ? &nt_resp : NULL,
+ NULL, NULL, NULL,
+ True);
}
/****************************************************************************
BOOL make_user_info_guest(auth_usersupplied_info **user_info)
{
- DATA_BLOB lm_blob = data_blob(NULL, 0);
- DATA_BLOB nt_blob = data_blob(NULL, 0);
- DATA_BLOB plaintext_blob = data_blob(NULL, 0);
- uint32 auth_flags = AUTH_FLAG_NONE;
NTSTATUS nt_status;
nt_status = make_user_info(user_info,
- "","",
- "","",
- "",
- nt_blob, lm_blob,
- plaintext_blob,
- auth_flags, True);
+ "","",
+ "","",
+ "",
+ NULL, NULL,
+ NULL, NULL,
+ NULL,
+ True);
return NT_STATUS_IS_OK(nt_status) ? True : False;
}
void debug_nt_user_token(int dbg_class, int dbg_lev, NT_USER_TOKEN *token)
{
- fstring sid_str;
size_t i;
if (!token) {
return;
}
- DEBUGC(dbg_class, dbg_lev, ("NT user token of user %s\n",
- sid_to_string(sid_str, &token->user_sids[0]) ));
- DEBUGADDC(dbg_class, dbg_lev, ("contains %lu SIDs\n", (unsigned long)token->num_sids));
+ DEBUGC(dbg_class, dbg_lev,
+ ("NT user token of user %s\n",
+ sid_string_static(&token->user_sids[0]) ));
+ DEBUGADDC(dbg_class, dbg_lev,
+ ("contains %lu SIDs\n", (unsigned long)token->num_sids));
for (i = 0; i < token->num_sids; i++)
- DEBUGADDC(dbg_class, dbg_lev, ("SID[%3lu]: %s\n", (unsigned long)i,
- sid_to_string(sid_str, &token->user_sids[i])));
+ DEBUGADDC(dbg_class, dbg_lev,
+ ("SID[%3lu]: %s\n", (unsigned long)i,
+ sid_string_static(&token->user_sids[i])));
+
+ dump_se_priv( dbg_class, dbg_lev, &token->privileges );
}
/****************************************************************************
prints a UNIX 'token' to debug output.
****************************************************************************/
-void debug_unix_user_token(int dbg_class, int dbg_lev, uid_t uid, gid_t gid, int n_groups, gid_t *groups)
+void debug_unix_user_token(int dbg_class, int dbg_lev, uid_t uid, gid_t gid,
+ int n_groups, gid_t *groups)
{
int i;
- DEBUGC(dbg_class, dbg_lev, ("UNIX token of user %ld\n", (long int)uid));
+ DEBUGC(dbg_class, dbg_lev,
+ ("UNIX token of user %ld\n", (long int)uid));
- DEBUGADDC(dbg_class, dbg_lev, ("Primary group is %ld and contains %i supplementary groups\n", (long int)gid, n_groups));
+ DEBUGADDC(dbg_class, dbg_lev,
+ ("Primary group is %ld and contains %i supplementary "
+ "groups\n", (long int)gid, n_groups));
for (i = 0; i < n_groups; i++)
DEBUGADDC(dbg_class, dbg_lev, ("Group[%3i]: %ld\n", i,
(long int)groups[i]));
}
-/****************************************************************************
- Create the SID list for this user.
-****************************************************************************/
+/******************************************************************************
+ Create a token for the root user to be used internally by smbd.
+ This is similar to running under the context of the LOCAL_SYSTEM account
+ in Windows. This is a read-only token. Do not modify it or free() it.
+ Create a copy if your need to change it.
+******************************************************************************/
-static NTSTATUS create_nt_user_token(const DOM_SID *user_sid, const DOM_SID *group_sid,
- int n_groupSIDs, DOM_SID *groupSIDs,
- BOOL is_guest, NT_USER_TOKEN **token)
+NT_USER_TOKEN *get_root_nt_token( void )
{
- NTSTATUS nt_status = NT_STATUS_OK;
- NT_USER_TOKEN *ptoken;
- int i;
- int sid_ndx;
+ static NT_USER_TOKEN *token = NULL;
+ DOM_SID u_sid, g_sid;
+ struct passwd *pw;
- if ((ptoken = malloc( sizeof(NT_USER_TOKEN) ) ) == NULL) {
- DEBUG(0, ("create_nt_token: Out of memory allocating token\n"));
- nt_status = NT_STATUS_NO_MEMORY;
- return nt_status;
+ if ( token )
+ return token;
+
+ if ( !(pw = sys_getpwnam( "root" )) ) {
+ DEBUG(0,("get_root_nt_token: getpwnam\"root\") failed!\n"));
+ return NULL;
}
+
+ /* get the user and primary group SIDs; although the
+ BUILTIN\Administrators SId is really the one that matters here */
+
+ uid_to_sid(&u_sid, pw->pw_uid);
+ gid_to_sid(&g_sid, pw->pw_gid);
- ZERO_STRUCTP(ptoken);
+ token = create_local_nt_token(NULL, &u_sid, &g_sid, False,
+ 1, &global_sid_Builtin_Administrators);
+ return token;
+}
- ptoken->num_sids = n_groupSIDs + 5;
+static int server_info_dtor(void *p)
+{
+ auth_serversupplied_info *server_info =
+ talloc_get_type_abort(p, auth_serversupplied_info);
- if ((ptoken->user_sids = (DOM_SID *)malloc( sizeof(DOM_SID) * ptoken->num_sids )) == NULL) {
- DEBUG(0, ("create_nt_token: Out of memory allocating SIDs\n"));
- nt_status = NT_STATUS_NO_MEMORY;
- return nt_status;
+ if (server_info->sam_account != NULL) {
+ TALLOC_FREE(server_info->sam_account);
}
-
- memset((char*)ptoken->user_sids,0,sizeof(DOM_SID) * ptoken->num_sids);
-
- /*
- * Note - user SID *MUST* be first in token !
- * se_access_check depends on this.
- *
- * Primary group SID is second in token. Convention.
- */
-
- sid_copy(&ptoken->user_sids[PRIMARY_USER_SID_INDEX], user_sid);
- if (group_sid)
- sid_copy(&ptoken->user_sids[PRIMARY_GROUP_SID_INDEX], group_sid);
- /*
- * Finally add the "standard" SIDs.
- * The only difference between guest and "anonymous" (which we
- * don't really support) is the addition of Authenticated_Users.
- */
+ ZERO_STRUCTP(server_info);
+ return 0;
+}
- sid_copy(&ptoken->user_sids[2], &global_sid_World);
- sid_copy(&ptoken->user_sids[3], &global_sid_Network);
+/***************************************************************************
+ Make a server_info struct. Free with TALLOC_FREE().
+***************************************************************************/
- if (is_guest)
- sid_copy(&ptoken->user_sids[4], &global_sid_Builtin_Guests);
- else
- sid_copy(&ptoken->user_sids[4], &global_sid_Authenticated_Users);
-
- sid_ndx = 5; /* next available spot */
+static auth_serversupplied_info *make_server_info(TALLOC_CTX *mem_ctx)
+{
+ struct auth_serversupplied_info *result;
- for (i = 0; i < n_groupSIDs; i++) {
- size_t check_sid_idx;
- for (check_sid_idx = 1; check_sid_idx < ptoken->num_sids; check_sid_idx++) {
- if (sid_equal(&ptoken->user_sids[check_sid_idx],
- &groupSIDs[i])) {
- break;
- }
- }
-
- if (check_sid_idx >= ptoken->num_sids) /* Not found already */ {
- sid_copy(&ptoken->user_sids[sid_ndx++], &groupSIDs[i]);
- } else {
- ptoken->num_sids--;
- }
+ result = TALLOC_ZERO_P(mem_ctx, auth_serversupplied_info);
+ if (result == NULL) {
+ DEBUG(0, ("talloc failed\n"));
+ return NULL;
}
-
- debug_nt_user_token(DBGC_AUTH, 10, ptoken);
-
- *token = ptoken;
- return nt_status;
+ talloc_set_destructor(result, server_info_dtor);
+
+ /* Initialise the uid and gid values to something non-zero
+ which may save us from giving away root access if there
+ is a bug in allocating these fields. */
+
+ result->uid = -1;
+ result->gid = -1;
+ return result;
}
-/****************************************************************************
- Create the SID list for this user.
-****************************************************************************/
+/***************************************************************************
+ Make (and fill) a user_info struct from a struct samu
+***************************************************************************/
-NT_USER_TOKEN *create_nt_token(uid_t uid, gid_t gid, int ngroups, gid_t *groups, BOOL is_guest)
+NTSTATUS make_server_info_sam(auth_serversupplied_info **server_info,
+ struct samu *sampass)
{
- DOM_SID user_sid;
- DOM_SID group_sid;
- DOM_SID *group_sids;
- NT_USER_TOKEN *token;
- int i;
+ NTSTATUS status;
+ struct passwd *pwd;
+ gid_t *gids;
+ auth_serversupplied_info *result;
- if (!NT_STATUS_IS_OK(uid_to_sid(&user_sid, uid))) {
- return NULL;
- }
- if (!NT_STATUS_IS_OK(gid_to_sid(&group_sid, gid))) {
- return NULL;
+ if ( !(pwd = getpwnam_alloc(NULL, pdb_get_username(sampass))) ) {
+ DEBUG(1, ("User %s in passdb, but getpwnam() fails!\n",
+ pdb_get_username(sampass)));
+ return NT_STATUS_NO_SUCH_USER;
}
- group_sids = malloc(sizeof(DOM_SID) * ngroups);
- if (!group_sids) {
- DEBUG(0, ("create_nt_token: malloc() failed for DOM_SID list!\n"));
- return NULL;
+ if ( !(result = make_server_info(NULL)) ) {
+ TALLOC_FREE(pwd);
+ return NT_STATUS_NO_MEMORY;
}
- for (i = 0; i < ngroups; i++) {
- if (!NT_STATUS_IS_OK(gid_to_sid(&(group_sids)[i], (groups)[i]))) {
- DEBUG(1, ("create_nt_token: failed to convert gid %ld to a sid!\n", (long int)groups[i]));
- SAFE_FREE(group_sids);
- return NULL;
- }
- }
+ result->sam_account = sampass;
+ result->unix_name = talloc_strdup(result, pwd->pw_name);
+ result->gid = pwd->pw_gid;
+ result->uid = pwd->pw_uid;
+
+ TALLOC_FREE(pwd);
- if (!NT_STATUS_IS_OK(create_nt_user_token(&user_sid, &group_sid,
- ngroups, group_sids, is_guest, &token))) {
- SAFE_FREE(group_sids);
- return NULL;
+ status = pdb_enum_group_memberships(result, sampass,
+ &result->sids, &gids,
+ &result->num_sids);
+
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(10, ("pdb_enum_group_memberships failed: %s\n",
+ nt_errstr(status)));
+ result->sam_account = NULL; /* Don't free on error exit. */
+ TALLOC_FREE(result);
+ return status;
}
- SAFE_FREE(group_sids);
+ /* For now we throw away the gids and convert via sid_to_gid
+ * later. This needs fixing, but I'd like to get the code straight and
+ * simple first. */
+ TALLOC_FREE(gids);
- return token;
+ DEBUG(5,("make_server_info_sam: made server info for user %s -> %s\n",
+ pdb_get_username(sampass), result->unix_name));
+
+ *server_info = result;
+
+ return NT_STATUS_OK;
}
-/******************************************************************************
- * this function returns the groups (SIDs) of the local SAM the user is in.
- * If this samba server is a DC of the domain the user belongs to, it returns
- * both domain groups and local / builtin groups. If the user is in a trusted
- * domain, or samba is a member server of a domain, then this function returns
- * local and builtin groups the user is a member of.
- *
- * currently this is a hack, as there is no sam implementation that is capable
- * of groups.
- *
- * NOTE!! This function will fail if you pass in a winbind user without
- * the domain --jerry
- ******************************************************************************/
+/*
+ * Add alias SIDs from memberships within the partially created token SID list
+ */
-static NTSTATUS get_user_groups(const char *username, uid_t uid, gid_t gid,
- int *n_groups, DOM_SID **groups, gid_t **unix_groups)
+static NTSTATUS add_aliases(TALLOC_CTX *tmp_ctx, const DOM_SID *domain_sid,
+ struct nt_user_token *token)
{
- int n_unix_groups;
- int i;
+ uint32 *aliases;
+ size_t i, num_aliases;
+ NTSTATUS status;
+
+ aliases = NULL;
+ num_aliases = 0;
+
+ status = pdb_enum_alias_memberships(tmp_ctx, domain_sid,
+ token->user_sids,
+ token->num_sids,
+ &aliases, &num_aliases);
+
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(10, ("pdb_enum_alias_memberships failed: %s\n",
+ nt_errstr(status)));
+ return status;
+ }
+
+ for (i=0; i<num_aliases; i++) {
+ DOM_SID alias_sid;
+ sid_compose(&alias_sid, domain_sid, aliases[i]);
+ add_sid_to_array_unique(token, &alias_sid,
+ &token->user_sids,
+ &token->num_sids);
+ if (token->user_sids == NULL) {
+ DEBUG(0, ("add_sid_to_array failed\n"));
+ return NT_STATUS_NO_MEMORY;
+ }
+ }
- *n_groups = 0;
- *groups = NULL;
-
- /* Try winbind first */
+ return NT_STATUS_OK;
+}
- if ( strchr(username, *lp_winbind_separator()) ) {
- n_unix_groups = winbind_getgroups( username, unix_groups );
+static NTSTATUS log_nt_token(TALLOC_CTX *tmp_ctx, NT_USER_TOKEN *token)
+{
+ char *command;
+ char *group_sidstr;
+ size_t i;
- DEBUG(10,("get_user_groups: winbind_getgroups(%s): result = %s\n", username,
- n_unix_groups == -1 ? "FAIL" : "SUCCESS"));
-
- if ( n_unix_groups == -1 )
- return NT_STATUS_NO_SUCH_USER; /* what should this return value be? */
+ if ((lp_log_nt_token_command() == NULL) ||
+ (strlen(lp_log_nt_token_command()) == 0)) {
+ return NT_STATUS_OK;
}
- else {
- /* fallback to getgrouplist() */
-
- n_unix_groups = groups_max();
-
- if ((*unix_groups = malloc( sizeof(gid_t) * n_unix_groups ) ) == NULL) {
- DEBUG(0, ("get_user_groups: Out of memory allocating unix group list\n"));
- return NT_STATUS_NO_MEMORY;
- }
-
- if (sys_getgrouplist(username, gid, *unix_groups, &n_unix_groups) == -1) {
-
- gid_t *groups_tmp;
-
- groups_tmp = Realloc(*unix_groups, sizeof(gid_t) * n_unix_groups);
-
- if (!groups_tmp) {
- SAFE_FREE(*unix_groups);
- return NT_STATUS_NO_MEMORY;
- }
- *unix_groups = groups_tmp;
- if (sys_getgrouplist(username, gid, *unix_groups, &n_unix_groups) == -1) {
- DEBUG(0, ("get_user_groups: failed to get the unix group list\n"));
- SAFE_FREE(*unix_groups);
- return NT_STATUS_NO_SUCH_USER; /* what should this return value be? */
- }
- }
+ group_sidstr = talloc_strdup(tmp_ctx, "");
+ for (i=1; i<token->num_sids; i++) {
+ group_sidstr = talloc_asprintf(
+ tmp_ctx, "%s %s", group_sidstr,
+ sid_string_static(&token->user_sids[i]));
}
- debug_unix_user_token(DBGC_CLASS, 5, uid, gid, n_unix_groups, *unix_groups);
-
- /* now setup the space for storing the SIDS */
-
- if (n_unix_groups > 0) {
-
- *groups = malloc(sizeof(DOM_SID) * n_unix_groups);
-
- if (!*groups) {
- DEBUG(0, ("get_user_group: malloc() failed for DOM_SID list!\n"));
- SAFE_FREE(*unix_groups);
- return NT_STATUS_NO_MEMORY;
- }
- }
+ command = talloc_string_sub(
+ tmp_ctx, lp_log_nt_token_command(),
+ "%s", sid_string_static(&token->user_sids[0]));
+ command = talloc_string_sub(tmp_ctx, command, "%t", group_sidstr);
- *n_groups = n_unix_groups;
+ if (command == NULL) {
+ return NT_STATUS_NO_MEMORY;
+ }
- for (i = 0; i < *n_groups; i++) {
- if (!NT_STATUS_IS_OK(gid_to_sid(&(*groups)[i], (*unix_groups)[i]))) {
- DEBUG(1, ("get_user_groups: failed to convert gid %ld to a sid!\n",
- (long int)(*unix_groups)[i+1]));
- SAFE_FREE(*groups);
- SAFE_FREE(*unix_groups);
- return NT_STATUS_NO_SUCH_USER;
- }
+ DEBUG(8, ("running command: [%s]\n", command));
+ if (smbrun(command, NULL) != 0) {
+ DEBUG(0, ("Could not log NT token\n"));
+ return NT_STATUS_ACCESS_DENIED;
}
-
+
return NT_STATUS_OK;
}
-/***************************************************************************
- Make a user_info struct
-***************************************************************************/
+/*******************************************************************
+*******************************************************************/
-static NTSTATUS make_server_info(auth_serversupplied_info **server_info)
+static NTSTATUS add_builtin_administrators( TALLOC_CTX *ctx, struct nt_user_token *token )
{
- *server_info = malloc(sizeof(**server_info));
- if (!*server_info) {
- DEBUG(0,("make_server_info: malloc failed!\n"));
- return NT_STATUS_NO_MEMORY;
- }
- ZERO_STRUCTP(*server_info);
-
- /* Initialise the uid and gid values to something non-zero
- which may save us from giving away root access if there
- is a bug in allocating these fields. */
-
- (*server_info)->uid = -1;
- (*server_info)->gid = -1;
+ DOM_SID domadm;
+ /* nothing to do if we aren't in a domain */
+
+ if ( !(IS_DC || lp_server_role()==ROLE_DOMAIN_MEMBER) ) {
+ return NT_STATUS_OK;
+ }
+
+ /* Find the Domain Admins SID */
+
+ if ( IS_DC ) {
+ sid_copy( &domadm, get_global_sam_sid() );
+ } else {
+ if ( !secrets_fetch_domain_sid( lp_workgroup(), &domadm ) )
+ return NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
+ }
+ sid_append_rid( &domadm, DOMAIN_GROUP_RID_ADMINS );
+
+ /* Add Administrators if the user beloongs to Domain Admins */
+
+ if ( nt_token_check_sid( &domadm, token ) ) {
+ add_sid_to_array(token, &global_sid_Builtin_Administrators,
+ &token->user_sids, &token->num_sids);
+ }
+
return NT_STATUS_OK;
}
-/***************************************************************************
-Fill a server_info struct from a SAM_ACCOUNT with their groups
-***************************************************************************/
+/*******************************************************************
+*******************************************************************/
-static NTSTATUS add_user_groups(auth_serversupplied_info **server_info,
- SAM_ACCOUNT *sampass,
- uid_t uid, gid_t gid)
+static NTSTATUS create_builtin_users( void )
{
- NTSTATUS nt_status;
- const DOM_SID *user_sid = pdb_get_user_sid(sampass);
- const DOM_SID *group_sid = pdb_get_group_sid(sampass);
- int n_groupSIDs = 0;
- DOM_SID *groupSIDs = NULL;
- gid_t *unix_groups = NULL;
- NT_USER_TOKEN *token;
- BOOL is_guest;
- uint32 rid;
+ NTSTATUS status;
+ DOM_SID dom_users;
- nt_status = get_user_groups(pdb_get_username(sampass), uid, gid,
- &n_groupSIDs, &groupSIDs, &unix_groups);
-
- if (!NT_STATUS_IS_OK(nt_status)) {
- DEBUG(4,("get_user_groups_from_local_sam failed\n"));
- free_server_info(server_info);
- return nt_status;
+ status = pdb_create_builtin_alias( BUILTIN_ALIAS_RID_USERS );
+ if ( !NT_STATUS_IS_OK(status) ) {
+ DEBUG(0,("create_builtin_users: Failed to create Users\n"));
+ return status;
}
- is_guest = (sid_peek_rid(user_sid, &rid) && rid == DOMAIN_USER_RID_GUEST);
-
- if (!NT_STATUS_IS_OK(nt_status = create_nt_user_token(user_sid, group_sid,
- n_groupSIDs, groupSIDs, is_guest,
- &token)))
+ /* add domain users */
+ if ((IS_DC || (lp_server_role() == ROLE_DOMAIN_MEMBER))
+ && secrets_fetch_domain_sid(lp_workgroup(), &dom_users))
{
- DEBUG(4,("create_nt_user_token failed\n"));
- SAFE_FREE(groupSIDs);
- SAFE_FREE(unix_groups);
- free_server_info(server_info);
- return nt_status;
+ sid_append_rid(&dom_users, DOMAIN_GROUP_RID_USERS );
+ status = pdb_add_aliasmem( &global_sid_Builtin_Users, &dom_users);
+ if ( !NT_STATUS_IS_OK(status) ) {
+ DEBUG(0,("create_builtin_administrators: Failed to add Domain Users to"
+ " Users\n"));
+ return status;
+ }
}
-
- SAFE_FREE(groupSIDs);
+
+ return NT_STATUS_OK;
+}
- (*server_info)->n_groups = n_groupSIDs;
- (*server_info)->groups = unix_groups;
- (*server_info)->ptok = token;
+/*******************************************************************
+*******************************************************************/
- return nt_status;
-}
+static NTSTATUS create_builtin_administrators( void )
+{
+ NTSTATUS status;
+ DOM_SID dom_admins, root_sid;
+ fstring root_name;
+ enum SID_NAME_USE type;
+ TALLOC_CTX *ctx;
+ BOOL ret;
-/***************************************************************************
- Make (and fill) a user_info struct from a SAM_ACCOUNT
-***************************************************************************/
+ status = pdb_create_builtin_alias( BUILTIN_ALIAS_RID_ADMINS );
+ if ( !NT_STATUS_IS_OK(status) ) {
+ DEBUG(0,("create_builtin_administrators: Failed to create Administrators\n"));
+ return status;
+ }
+
+ /* add domain admins */
+ if ((IS_DC || (lp_server_role() == ROLE_DOMAIN_MEMBER))
+ && secrets_fetch_domain_sid(lp_workgroup(), &dom_admins))
+ {
+ sid_append_rid(&dom_admins, DOMAIN_GROUP_RID_ADMINS);
+ status = pdb_add_aliasmem( &global_sid_Builtin_Administrators, &dom_admins );
+ if ( !NT_STATUS_IS_OK(status) ) {
+ DEBUG(0,("create_builtin_administrators: Failed to add Domain Admins"
+ " Administrators\n"));
+ return status;
+ }
+ }
+
+ /* add root */
+ if ( (ctx = talloc_init(NULL)) == NULL ) {
+ return NT_STATUS_NO_MEMORY;
+ }
+ fstr_sprintf( root_name, "%s\\root", get_global_sam_name() );
+ ret = lookup_name( ctx, root_name, 0, NULL, NULL, &root_sid, &type );
+ TALLOC_FREE( ctx );
-NTSTATUS make_server_info_sam(auth_serversupplied_info **server_info,
- SAM_ACCOUNT *sampass)
+ if ( ret ) {
+ status = pdb_add_aliasmem( &global_sid_Builtin_Administrators, &root_sid );
+ if ( !NT_STATUS_IS_OK(status) ) {
+ DEBUG(0,("create_builtin_administrators: Failed to add root"
+ " Administrators\n"));
+ return status;
+ }
+ }
+
+ return NT_STATUS_OK;
+}
+
+/*******************************************************************
+ Create a NT token for the user, expanding local aliases
+*******************************************************************/
+
+static struct nt_user_token *create_local_nt_token(TALLOC_CTX *mem_ctx,
+ const DOM_SID *user_sid,
+ const DOM_SID *group_sid,
+ BOOL is_guest,
+ int num_groupsids,
+ const DOM_SID *groupsids)
{
- NTSTATUS nt_status;
- struct passwd *pwd;
+ TALLOC_CTX *tmp_ctx;
+ struct nt_user_token *result = NULL;
+ int i;
+ NTSTATUS status;
+ gid_t gid;
- if (!NT_STATUS_IS_OK(nt_status = make_server_info(server_info)))
- return nt_status;
+ tmp_ctx = talloc_new(mem_ctx);
+ if (tmp_ctx == NULL) {
+ DEBUG(0, ("talloc_new failed\n"));
+ return NULL;
+ }
- (*server_info)->sam_account = sampass;
+ result = TALLOC_ZERO_P(tmp_ctx, NT_USER_TOKEN);
+ if (result == NULL) {
+ DEBUG(0, ("talloc failed\n"));
+ goto done;
+ }
- if ( !(pwd = getpwnam_alloc(pdb_get_username(sampass))) ) {
- DEBUG(1, ("User %s in passdb, but getpwnam() fails!\n",
- pdb_get_username(sampass)));
- free_server_info(server_info);
- return NT_STATUS_NO_SUCH_USER;
+ /* Add the user and primary group sid */
+
+ add_sid_to_array(result, user_sid,
+ &result->user_sids, &result->num_sids);
+ add_sid_to_array(result, group_sid,
+ &result->user_sids, &result->num_sids);
+
+ /* Add in BUILTIN sids */
+
+ add_sid_to_array(result, &global_sid_World,
+ &result->user_sids, &result->num_sids);
+ add_sid_to_array(result, &global_sid_Network,
+ &result->user_sids, &result->num_sids);
+
+ if (is_guest) {
+ add_sid_to_array(result, &global_sid_Builtin_Guests,
+ &result->user_sids, &result->num_sids);
+ } else {
+ add_sid_to_array(result, &global_sid_Authenticated_Users,
+ &result->user_sids, &result->num_sids);
}
- (*server_info)->unix_name = smb_xstrdup(pwd->pw_name);
- (*server_info)->gid = pwd->pw_gid;
- (*server_info)->uid = pwd->pw_uid;
- passwd_free(&pwd);
+ /* Now the SIDs we got from authentication. These are the ones from
+ * the info3 struct or from the pdb_enum_group_memberships, depending
+ * on who authenticated the user. */
- if (!NT_STATUS_IS_OK(nt_status = add_user_groups(server_info, sampass,
- (*server_info)->uid,
- (*server_info)->gid))) {
- free_server_info(server_info);
- return nt_status;
+ for (i=0; i<num_groupsids; i++) {
+ add_sid_to_array_unique(result, &groupsids[i],
+ &result->user_sids, &result->num_sids);
}
+
+ /* Deal with the BUILTIN\Administrators group. If the SID can
+ be resolved then assume that the add_aliasmem( S-1-5-32 )
+ handled it. */
- (*server_info)->sam_fill_level = SAM_FILL_ALL;
- DEBUG(5,("make_server_info_sam: made server info for user %s -> %s\n",
- pdb_get_username(sampass),
- (*server_info)->unix_name));
+ if ( !sid_to_gid( &global_sid_Builtin_Administrators, &gid ) ) {
+ /* We can only create a mapping if winbind is running
+ and the nested group functionality has been enabled */
+
+ if ( lp_winbind_nested_groups() && winbind_ping() ) {
+ become_root();
+ status = create_builtin_administrators( );
+ if ( !NT_STATUS_IS_OK(status) ) {
+ DEBUG(0,("create_local_nt_token: Failed to create BUILTIN\\Administrators group!\n"));
+ /* don't fail, just log the message */
+ }
+ unbecome_root();
+ }
+ else {
+ status = add_builtin_administrators( tmp_ctx, result );
+ if ( !NT_STATUS_IS_OK(status) ) {
+ /* just log a complaint but do not fail */
+ DEBUG(3,("create_local_nt_token: failed to check for local Administrators"
+ " membership (%s)\n", nt_errstr(status)));
+ }
+ }
+ }
+
+ /* Deal with the BUILTIN\Users group. If the SID can
+ be resolved then assume that the add_aliasmem( S-1-5-32 )
+ handled it. */
+
+ if ( !sid_to_gid( &global_sid_Builtin_Users, &gid ) ) {
+ /* We can only create a mapping if winbind is running
+ and the nested group functionality has been enabled */
+
+ if ( lp_winbind_nested_groups() && winbind_ping() ) {
+ become_root();
+ status = create_builtin_users( );
+ if ( !NT_STATUS_IS_OK(status) ) {
+ DEBUG(0,("create_local_nt_token: Failed to create BUILTIN\\Administrators group!\n"));
+ /* don't fail, just log the message */
+ }
+ unbecome_root();
+ }
+ }
- return nt_status;
-}
+ /* Deal with local groups */
+
+ if (lp_winbind_nested_groups()) {
-/***************************************************************************
- Make (and fill) a user_info struct from a 'struct passwd' by conversion
- to a SAM_ACCOUNT
-***************************************************************************/
+ /* Now add the aliases. First the one from our local SAM */
-NTSTATUS make_server_info_pw(auth_serversupplied_info **server_info, const struct passwd *pwd)
-{
- NTSTATUS nt_status;
- SAM_ACCOUNT *sampass = NULL;
- if (!NT_STATUS_IS_OK(nt_status = pdb_init_sam_pw(&sampass, pwd))) {
- return nt_status;
- }
- if (!NT_STATUS_IS_OK(nt_status = make_server_info(server_info))) {
- return nt_status;
- }
+ status = add_aliases(tmp_ctx, get_global_sam_sid(), result);
- (*server_info)->sam_account = sampass;
+ if (!NT_STATUS_IS_OK(status)) {
+ result = NULL;
+ goto done;
+ }
- if (!NT_STATUS_IS_OK(nt_status = add_user_groups(server_info, sampass, pwd->pw_uid, pwd->pw_gid))) {
- return nt_status;
- }
+ /* Finally the builtin ones */
- (*server_info)->unix_name = smb_xstrdup(pwd->pw_name);
+ status = add_aliases(tmp_ctx, &global_sid_Builtin, result);
- (*server_info)->sam_fill_level = SAM_FILL_ALL;
- (*server_info)->uid = pwd->pw_uid;
- (*server_info)->gid = pwd->pw_gid;
- return nt_status;
+ if (!NT_STATUS_IS_OK(status)) {
+ result = NULL;
+ goto done;
+ }
+ }
+
+
+ get_privileges_for_sids(&result->privileges, result->user_sids,
+ result->num_sids);
+
+ talloc_steal(mem_ctx, result);
+
+ done:
+ TALLOC_FREE(tmp_ctx);
+ return result;
+}
+
+/*
+ * Create the token to use from server_info->sam_account and
+ * server_info->sids (the info3/sam groups). Find the unix gids.
+ */
+
+NTSTATUS create_local_token(auth_serversupplied_info *server_info)
+{
+ TALLOC_CTX *mem_ctx;
+ NTSTATUS status;
+ size_t i;
+
+
+ mem_ctx = talloc_new(NULL);
+ if (mem_ctx == NULL) {
+ DEBUG(0, ("talloc_new failed\n"));
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ if (server_info->was_mapped) {
+ status = create_token_from_username(server_info,
+ server_info->unix_name,
+ server_info->guest,
+ &server_info->uid,
+ &server_info->gid,
+ &server_info->unix_name,
+ &server_info->ptok);
+
+ } else {
+ server_info->ptok = create_local_nt_token(
+ server_info,
+ pdb_get_user_sid(server_info->sam_account),
+ pdb_get_group_sid(server_info->sam_account),
+ server_info->guest,
+ server_info->num_sids, server_info->sids);
+ status = server_info->ptok ?
+ NT_STATUS_OK : NT_STATUS_NO_SUCH_USER;
+ }
+
+ if (!NT_STATUS_IS_OK(status)) {
+ TALLOC_FREE(mem_ctx);
+ return status;
+ }
+
+ /* Convert the SIDs to gids. */
+
+ server_info->n_groups = 0;
+ server_info->groups = NULL;
+
+ /* Start at index 1, where the groups start. */
+
+ for (i=1; i<server_info->ptok->num_sids; i++) {
+ gid_t gid;
+ DOM_SID *sid = &server_info->ptok->user_sids[i];
+
+ if (!sid_to_gid(sid, &gid)) {
+ DEBUG(10, ("Could not convert SID %s to gid, "
+ "ignoring it\n", sid_string_static(sid)));
+ continue;
+ }
+ add_gid_to_array_unique(server_info, gid, &server_info->groups,
+ &server_info->n_groups);
+ }
+
+ debug_nt_user_token(DBGC_AUTH, 10, server_info->ptok);
+
+ status = log_nt_token(mem_ctx, server_info->ptok);
+
+ TALLOC_FREE(mem_ctx);
+ return status;
+}
+
+/*
+ * Create an artificial NT token given just a username. (Initially indended
+ * for force user)
+ *
+ * We go through lookup_name() to avoid problems we had with 'winbind use
+ * default domain'.
+ *
+ * We have 3 cases:
+ *
+ * unmapped unix users: Go directly to nss to find the user's group.
+ *
+ * A passdb user: The list of groups is provided by pdb_enum_group_memberships.
+ *
+ * If the user is provided by winbind, the primary gid is set to "domain
+ * users" of the user's domain. For an explanation why this is necessary, see
+ * the thread starting at
+ * http://lists.samba.org/archive/samba-technical/2006-January/044803.html.
+ */
+
+NTSTATUS create_token_from_username(TALLOC_CTX *mem_ctx, const char *username,
+ BOOL is_guest,
+ uid_t *uid, gid_t *gid,
+ char **found_username,
+ struct nt_user_token **token)
+{
+ NTSTATUS result = NT_STATUS_NO_SUCH_USER;
+ TALLOC_CTX *tmp_ctx;
+ DOM_SID user_sid;
+ enum SID_NAME_USE type;
+ gid_t *gids;
+ DOM_SID primary_group_sid;
+ DOM_SID *group_sids;
+ size_t num_group_sids;
+
+ tmp_ctx = talloc_new(NULL);
+ if (tmp_ctx == NULL) {
+ DEBUG(0, ("talloc_new failed\n"));
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ if (!lookup_name(tmp_ctx, username, LOOKUP_NAME_ALL,
+ NULL, NULL, &user_sid, &type)) {
+ DEBUG(1, ("lookup_name for %s failed\n", username));
+ goto done;
+ }
+
+ if (type != SID_NAME_USER) {
+ DEBUG(1, ("%s is a %s, not a user\n", username,
+ sid_type_lookup(type)));
+ goto done;
+ }
+
+ if (!sid_to_uid(&user_sid, uid)) {
+ DEBUG(1, ("sid_to_uid for %s (%s) failed\n",
+ username, sid_string_static(&user_sid)));
+ goto done;
+ }
+
+ if (sid_check_is_in_unix_users(&user_sid)) {
+
+ /* This is a unix user not in passdb. We need to ask nss
+ * directly, without consulting passdb */
+
+ struct passwd *pass;
+ size_t i;
+
+ pass = getpwuid_alloc(tmp_ctx, *uid);
+ if (pass == NULL) {
+ DEBUG(1, ("getpwuid(%d) for user %s failed\n",
+ *uid, username));
+ goto done;
+ }
+
+ *gid = pass->pw_gid;
+ gid_to_sid(&primary_group_sid, pass->pw_gid);
+
+ if (!getgroups_unix_user(tmp_ctx, username, pass->pw_gid,
+ &gids, &num_group_sids)) {
+ DEBUG(1, ("getgroups_unix_user for user %s failed\n",
+ username));
+ goto done;
+ }
+
+ group_sids = talloc_array(tmp_ctx, DOM_SID, num_group_sids);
+ if (group_sids == NULL) {
+ DEBUG(1, ("talloc_array failed\n"));
+ result = NT_STATUS_NO_MEMORY;
+ goto done;
+ }
+
+ for (i=0; i<num_group_sids; i++) {
+ gid_to_sid(&group_sids[i], gids[i]);
+ }
+ *found_username = talloc_strdup(mem_ctx, pass->pw_name);
+
+ } else if (sid_check_is_in_our_domain(&user_sid)) {
+
+ /* This is a passdb user, so ask passdb */
+
+ struct samu *sam_acct = NULL;
+ const DOM_SID *gr_sid = NULL;
+
+ if ( !(sam_acct = samu_new( tmp_ctx )) ) {
+ result = NT_STATUS_NO_MEMORY;
+ goto done;
+ }
+
+ if (!pdb_getsampwsid(sam_acct, &user_sid)) {
+ DEBUG(1, ("pdb_getsampwsid(%s) for user %s failed\n",
+ sid_string_static(&user_sid), username));
+ result = NT_STATUS_NO_SUCH_USER;
+ goto done;
+ }
+
+ gr_sid = pdb_get_group_sid(sam_acct);
+ if (!gr_sid) {
+ result = NT_STATUS_NO_MEMORY;
+ goto done;
+ }
+
+ sid_copy(&primary_group_sid, gr_sid);
+
+ if (!sid_to_gid(&primary_group_sid, gid)) {
+ DEBUG(1, ("sid_to_gid(%s) failed\n",
+ sid_string_static(&primary_group_sid)));
+ goto done;
+ }
+
+ result = pdb_enum_group_memberships(tmp_ctx, sam_acct,
+ &group_sids, &gids,
+ &num_group_sids);
+ if (!NT_STATUS_IS_OK(result)) {
+ DEBUG(10, ("enum_group_memberships failed for %s\n",
+ username));
+ goto done;
+ }
+
+ *found_username = talloc_strdup(mem_ctx,
+ pdb_get_username(sam_acct));
+
+ } else {
+
+ /* This user is from winbind, force the primary gid to the
+ * user's "domain users" group. Under certain circumstances
+ * (user comes from NT4), this might be a loss of
+ * information. But we can not rely on winbind getting the
+ * correct info. AD might prohibit winbind looking up that
+ * information. */
+
+ uint32 dummy;
+
+ sid_copy(&primary_group_sid, &user_sid);
+ sid_split_rid(&primary_group_sid, &dummy);
+ sid_append_rid(&primary_group_sid, DOMAIN_GROUP_RID_USERS);
+
+ if (!sid_to_gid(&primary_group_sid, gid)) {
+ DEBUG(1, ("sid_to_gid(%s) failed\n",
+ sid_string_static(&primary_group_sid)));
+ goto done;
+ }
+
+ num_group_sids = 0;
+ group_sids = NULL;
+
+ *found_username = talloc_strdup(mem_ctx, username);
+ }
+
+ *token = create_local_nt_token(mem_ctx, &user_sid, &primary_group_sid,
+ is_guest, num_group_sids, group_sids);
+
+ if ((*token == NULL) || (*found_username == NULL)) {
+ result = NT_STATUS_NO_MEMORY;
+ goto done;
+ }
+
+ result = NT_STATUS_OK;
+ done:
+ TALLOC_FREE(tmp_ctx);
+ return result;
+}
+
+/***************************************************************************
+ Build upon create_token_from_username:
+
+ Expensive helper function to figure out whether a user given its name is
+ member of a particular group.
+***************************************************************************/
+BOOL user_in_group_sid(const char *username, const DOM_SID *group_sid)
+{
+ NTSTATUS status;
+ uid_t uid;
+ gid_t gid;
+ char *found_username;
+ struct nt_user_token *token;
+ BOOL result;
+
+ TALLOC_CTX *mem_ctx;
+
+ mem_ctx = talloc_new(NULL);
+ if (mem_ctx == NULL) {
+ DEBUG(0, ("talloc_new failed\n"));
+ return False;
+ }
+
+ status = create_token_from_username(mem_ctx, username, False,
+ &uid, &gid, &found_username,
+ &token);
+
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(10, ("could not create token for %s\n", username));
+ return False;
+ }
+
+ result = nt_token_check_sid(group_sid, token);
+
+ TALLOC_FREE(mem_ctx);
+ return result;
+
+}
+
+BOOL user_in_group(const char *username, const char *groupname)
+{
+ TALLOC_CTX *mem_ctx;
+ DOM_SID group_sid;
+ BOOL ret;
+
+ mem_ctx = talloc_new(NULL);
+ if (mem_ctx == NULL) {
+ DEBUG(0, ("talloc_new failed\n"));
+ return False;
+ }
+
+ ret = lookup_name(mem_ctx, groupname, LOOKUP_NAME_ALL,
+ NULL, NULL, &group_sid, NULL);
+ TALLOC_FREE(mem_ctx);
+
+ if (!ret) {
+ DEBUG(10, ("lookup_name for (%s) failed.\n", groupname));
+ return False;
+ }
+
+ return user_in_group_sid(username, &group_sid);
+}
+
+
+/***************************************************************************
+ Make (and fill) a user_info struct from a 'struct passwd' by conversion
+ to a struct samu
+***************************************************************************/
+
+NTSTATUS make_server_info_pw(auth_serversupplied_info **server_info,
+ char *unix_username,
+ struct passwd *pwd)
+{
+ NTSTATUS status;
+ struct samu *sampass = NULL;
+ gid_t *gids;
+ auth_serversupplied_info *result;
+
+ if ( !(sampass = samu_new( NULL )) ) {
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ status = samu_set_unix( sampass, pwd );
+ if (!NT_STATUS_IS_OK(status)) {
+ return status;
+ }
+
+ result = make_server_info(NULL);
+ if (result == NULL) {
+ TALLOC_FREE(sampass);
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ result->sam_account = sampass;
+ result->unix_name = talloc_strdup(result, unix_username);
+ result->uid = pwd->pw_uid;
+ result->gid = pwd->pw_gid;
+
+ status = pdb_enum_group_memberships(result, sampass,
+ &result->sids, &gids,
+ &result->num_sids);
+
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(10, ("pdb_enum_group_memberships failed: %s\n",
+ nt_errstr(status)));
+ TALLOC_FREE(result);
+ return status;
+ }
+
+ /* For now we throw away the gids and convert via sid_to_gid
+ * later. This needs fixing, but I'd like to get the code straight and
+ * simple first. */
+ TALLOC_FREE(gids);
+
+ *server_info = result;
+
+ return NT_STATUS_OK;
}
/***************************************************************************
Make (and fill) a user_info struct for a guest login.
+ This *must* succeed for smbd to start. If there is no mapping entry for
+ the guest gid, then create one.
***************************************************************************/
-NTSTATUS make_server_info_guest(auth_serversupplied_info **server_info)
+static NTSTATUS make_new_server_info_guest(auth_serversupplied_info **server_info)
{
- NTSTATUS nt_status;
- SAM_ACCOUNT *sampass = NULL;
+ NTSTATUS status;
+ struct samu *sampass = NULL;
DOM_SID guest_sid;
+ BOOL ret;
+ static const char zeros[16];
- if (!NT_STATUS_IS_OK(nt_status = pdb_init_sam(&sampass))) {
- return nt_status;
+ if ( !(sampass = samu_new( NULL )) ) {
+ return NT_STATUS_NO_MEMORY;
}
sid_copy(&guest_sid, get_global_sam_sid());
sid_append_rid(&guest_sid, DOMAIN_USER_RID_GUEST);
become_root();
- if (!pdb_getsampwsid(sampass, &guest_sid)) {
- unbecome_root();
+ ret = pdb_getsampwsid(sampass, &guest_sid);
+ unbecome_root();
+
+ if (!ret) {
+ TALLOC_FREE(sampass);
return NT_STATUS_NO_SUCH_USER;
}
- unbecome_root();
- nt_status = make_server_info_sam(server_info, sampass);
+ status = make_server_info_sam(server_info, sampass);
+ if (!NT_STATUS_IS_OK(status)) {
+ TALLOC_FREE(sampass);
+ return status;
+ }
+
+ (*server_info)->guest = True;
- if (NT_STATUS_IS_OK(nt_status)) {
- (*server_info)->guest = True;
+ status = create_local_token(*server_info);
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(10, ("create_local_token failed: %s\n",
+ nt_errstr(status)));
+ return status;
}
- return nt_status;
+ /* annoying, but the Guest really does have a session key, and it is
+ all zeros! */
+ (*server_info)->user_session_key = data_blob(zeros, sizeof(zeros));
+ (*server_info)->lm_session_key = data_blob(zeros, sizeof(zeros));
+
+ return NT_STATUS_OK;
+}
+
+static auth_serversupplied_info *copy_serverinfo(auth_serversupplied_info *src)
+{
+ auth_serversupplied_info *dst;
+
+ dst = make_server_info(NULL);
+ if (dst == NULL) {
+ return NULL;
+ }
+
+ dst->guest = src->guest;
+ dst->uid = src->uid;
+ dst->gid = src->gid;
+ dst->n_groups = src->n_groups;
+ if (src->n_groups != 0) {
+ dst->groups = talloc_memdup(dst, src->groups,
+ sizeof(gid_t)*dst->n_groups);
+ } else {
+ dst->groups = NULL;
+ }
+
+ if (src->ptok) {
+ dst->ptok = dup_nt_token(dst, src->ptok);
+ if (!dst->ptok) {
+ TALLOC_FREE(dst);
+ return NULL;
+ }
+ }
+
+ dst->user_session_key = data_blob_talloc( dst, src->user_session_key.data,
+ src->user_session_key.length);
+
+ dst->lm_session_key = data_blob_talloc(dst, src->lm_session_key.data,
+ src->lm_session_key.length);
+
+ dst->sam_account = samu_new(NULL);
+ if (!dst->sam_account) {
+ TALLOC_FREE(dst);
+ return NULL;
+ }
+
+ if (!pdb_copy_sam_account(dst->sam_account, src->sam_account)) {
+ TALLOC_FREE(dst);
+ return NULL;
+ }
+
+ dst->pam_handle = NULL;
+ dst->unix_name = talloc_strdup(dst, src->unix_name);
+ if (!dst->unix_name) {
+ TALLOC_FREE(dst);
+ return NULL;
+ }
+
+ return dst;
+}
+
+static auth_serversupplied_info *guest_info = NULL;
+
+BOOL init_guest_info(void)
+{
+ if (guest_info != NULL)
+ return True;
+
+ return NT_STATUS_IS_OK(make_new_server_info_guest(&guest_info));
+}
+
+NTSTATUS make_server_info_guest(auth_serversupplied_info **server_info)
+{
+ *server_info = copy_serverinfo(guest_info);
+ return (*server_info != NULL) ? NT_STATUS_OK : NT_STATUS_NO_MEMORY;
}
/***************************************************************************
const char *username,
char **found_username,
uid_t *uid, gid_t *gid,
- SAM_ACCOUNT **sam_account)
+ struct samu *account,
+ BOOL *username_was_mapped)
{
- fstring dom_user;
+ NTSTATUS nt_status;
+ fstring dom_user, lower_username;
+ fstring real_username;
struct passwd *passwd;
- fstr_sprintf(dom_user, "%s%s%s",
- domain, lp_winbind_separator(), username);
+ fstrcpy( lower_username, username );
+ strlower_m( lower_username );
- passwd = Get_Pwnam(dom_user);
+ fstr_sprintf(dom_user, "%s%c%s", domain, *lp_winbind_separator(),
+ lower_username);
- /* if the lookup for DOMAIN\username failed, try again
- with just 'username'. This is need for accessing the server
- as a trust user that actually maps to a local account */
+ /* Get the passwd struct. Try to create the account is necessary. */
- if ( !passwd ) {
- fstrcpy( dom_user, username );
- passwd = Get_Pwnam( dom_user );
- }
+ *username_was_mapped = map_username( dom_user );
- if (passwd == NULL)
+ if ( !(passwd = smb_getpwnam( NULL, dom_user, real_username, True )) )
return NT_STATUS_NO_SUCH_USER;
*uid = passwd->pw_uid;
*gid = passwd->pw_gid;
- /* This is pointless -- there is no suport for differeing
+ /* This is pointless -- there is no suport for differing
unix and windows names. Make sure to always store the
one we actually looked up and succeeded. Have I mentioned
why I hate the 'winbind use default domain' parameter?
--jerry */
- *found_username = talloc_strdup(mem_ctx, dom_user);
+ *found_username = talloc_strdup( mem_ctx, real_username );
+
+ DEBUG(5,("fill_sam_account: located username was [%s]\n", *found_username));
- return pdb_init_sam_pw(sam_account, passwd);
+ nt_status = samu_set_unix( account, passwd );
+
+ TALLOC_FREE(passwd);
+
+ return nt_status;
}
/****************************************************************************
- Wrapper to allow the getpwnam() call to styrip the domain name and
- try again in case a local UNIX user is already there.
+ Wrapper to allow the getpwnam() call to strip the domain name and
+ try again in case a local UNIX user is already there. Also run through
+ the username if we fallback to the username only.
****************************************************************************/
-struct passwd *smb_getpwnam( char *domuser )
+struct passwd *smb_getpwnam( TALLOC_CTX *mem_ctx, char *domuser,
+ fstring save_username, BOOL create )
{
- struct passwd *pw;
+ struct passwd *pw = NULL;
char *p;
+ fstring username;
+
+ /* we only save a copy of the username it has been mangled
+ by winbindd use default domain */
+
+ save_username[0] = '\0';
+
+ /* don't call map_username() here since it has to be done higher
+ up the stack so we don't call it mutliple times */
- pw = Get_Pwnam( domuser );
- if ( pw )
- return pw;
+ fstrcpy( username, domuser );
+
+ p = strchr_m( username, *lp_winbind_separator() );
+
+ /* code for a DOMAIN\user string */
+
+ if ( p ) {
+ fstring strip_username;
- /* fallback to looking up just the username */
+ pw = Get_Pwnam_alloc( mem_ctx, domuser );
+ if ( pw ) {
+ /* make sure we get the case of the username correct */
+ /* work around 'winbind use default domain = yes' */
- p = strchr( domuser, *lp_winbind_separator() );
+ if ( !strchr_m( pw->pw_name, *lp_winbind_separator() ) ) {
+ char *domain;
+
+ /* split the domain and username into 2 strings */
+ *p = '\0';
+ domain = username;
- if ( p )
- return Get_Pwnam(p+1);
+ fstr_sprintf(save_username, "%s%c%s", domain, *lp_winbind_separator(), pw->pw_name);
+ }
+ else
+ fstrcpy( save_username, pw->pw_name );
- return NULL;
+ /* whew -- done! */
+ return pw;
+ }
+
+ /* setup for lookup of just the username */
+ /* remember that p and username are overlapping memory */
+
+ p++;
+ fstrcpy( strip_username, p );
+ fstrcpy( username, strip_username );
+ }
+
+ /* just lookup a plain username */
+
+ pw = Get_Pwnam_alloc(mem_ctx, username);
+
+ /* Create local user if requested but only if winbindd
+ is not running. We need to protect against cases
+ where winbindd is failing and then prematurely
+ creating users in /etc/passwd */
+
+ if ( !pw && create && !winbind_ping() ) {
+ /* Don't add a machine account. */
+ if (username[strlen(username)-1] == '$')
+ return NULL;
+
+ smb_create_user(NULL, username, NULL);
+ pw = Get_Pwnam_alloc(mem_ctx, username);
+ }
+
+ /* one last check for a valid passwd struct */
+
+ if ( pw )
+ fstrcpy( save_username, pw->pw_name );
+
+ return pw;
}
/***************************************************************************
***************************************************************************/
NTSTATUS make_server_info_info3(TALLOC_CTX *mem_ctx,
- const char *internal_username,
const char *sent_nt_username,
const char *domain,
auth_serversupplied_info **server_info,
NET_USER_INFO_3 *info3)
{
+ static const char zeros[16];
+
NTSTATUS nt_status = NT_STATUS_OK;
char *found_username;
const char *nt_domain;
const char *nt_username;
-
- SAM_ACCOUNT *sam_account = NULL;
+ struct samu *sam_account = NULL;
DOM_SID user_sid;
DOM_SID group_sid;
+ BOOL username_was_mapped;
uid_t uid;
gid_t gid;
- int n_lgroupSIDs;
- DOM_SID *lgroupSIDs = NULL;
-
- gid_t *unix_groups = NULL;
- NT_USER_TOKEN *token;
-
- DOM_SID *all_group_SIDs;
size_t i;
+ auth_serversupplied_info *result;
+
/*
Here is where we should check the list of
trusted domains, and verify that the SID
}
if (!(nt_username = unistr2_tdup(mem_ctx, &(info3->uni_user_name)))) {
- /* If the server didn't give us one, just use the one we sent them */
+ /* If the server didn't give us one, just use the one we sent
+ * them */
nt_username = sent_nt_username;
}
if (!(nt_domain = unistr2_tdup(mem_ctx, &(info3->uni_logon_dom)))) {
- /* If the server didn't give us one, just use the one we sent them */
- domain = domain;
+ /* If the server didn't give us one, just use the one we sent
+ * them */
+ nt_domain = domain;
}
/* try to fill the SAM account.. If getpwnam() fails, then try the
- add user script (2.2.x behavior) */
+ add user script (2.2.x behavior).
+
+ We use the _unmapped_ username here in an attempt to provide
+ consistent username mapping behavior between kerberos and NTLM[SSP]
+ authentication in domain mode security. I.E. Username mapping
+ should be applied to the fully qualified username
+ (e.g. DOMAIN\user) and not just the login name. Yes this means we
+ called map_username() unnecessarily in make_user_info_map() but
+ that is how the current code is designed. Making the change here
+ is the least disruptive place. -- jerry */
- nt_status = fill_sam_account(mem_ctx, nt_domain, internal_username,
- &found_username, &uid, &gid, &sam_account);
-
- if (NT_STATUS_EQUAL(nt_status, NT_STATUS_NO_SUCH_USER)) {
- DEBUG(3,("User %s does not exist, trying to add it\n",
- internal_username));
- auth_add_user_script(nt_domain, internal_username);
- nt_status = fill_sam_account(mem_ctx, nt_domain,
- internal_username, &found_username,
- &uid, &gid, &sam_account);
+ if ( !(sam_account = samu_new( NULL )) ) {
+ return NT_STATUS_NO_MEMORY;
}
+
+ /* this call will try to create the user if necessary */
+
+ nt_status = fill_sam_account(mem_ctx, nt_domain, sent_nt_username,
+ &found_username, &uid, &gid, sam_account,
+ &username_was_mapped);
+
+ /* if we still don't have a valid unix account check for
+ 'map to guest = bad uid' */
+
if (!NT_STATUS_IS_OK(nt_status)) {
- DEBUG(0, ("make_server_info_info3: pdb_init_sam failed!\n"));
+ TALLOC_FREE( sam_account );
+ if ( lp_map_to_guest() == MAP_TO_GUEST_ON_BAD_UID ) {
+ make_server_info_guest(server_info);
+ return NT_STATUS_OK;
+ }
return nt_status;
}
if (!pdb_set_nt_username(sam_account, nt_username, PDB_CHANGED)) {
- pdb_free_sam(&sam_account);
+ TALLOC_FREE(sam_account);
return NT_STATUS_NO_MEMORY;
}
if (!pdb_set_username(sam_account, nt_username, PDB_CHANGED)) {
- pdb_free_sam(&sam_account);
+ TALLOC_FREE(sam_account);
return NT_STATUS_NO_MEMORY;
}
if (!pdb_set_domain(sam_account, nt_domain, PDB_CHANGED)) {
- pdb_free_sam(&sam_account);
+ TALLOC_FREE(sam_account);
return NT_STATUS_NO_MEMORY;
}
if (!pdb_set_user_sid(sam_account, &user_sid, PDB_CHANGED)) {
- pdb_free_sam(&sam_account);
+ TALLOC_FREE(sam_account);
return NT_STATUS_UNSUCCESSFUL;
}
if (!pdb_set_group_sid(sam_account, &group_sid, PDB_CHANGED)) {
- pdb_free_sam(&sam_account);
+ TALLOC_FREE(sam_account);
return NT_STATUS_UNSUCCESSFUL;
}
- if (!pdb_set_fullname(sam_account, unistr2_static(&(info3->uni_full_name)),
+ if (!pdb_set_fullname(sam_account,
+ unistr2_static(&(info3->uni_full_name)),
PDB_CHANGED)) {
- pdb_free_sam(&sam_account);
+ TALLOC_FREE(sam_account);
return NT_STATUS_NO_MEMORY;
}
- if (!pdb_set_logon_script(sam_account, unistr2_static(&(info3->uni_logon_script)), PDB_CHANGED)) {
- pdb_free_sam(&sam_account);
+ if (!pdb_set_logon_script(sam_account,
+ unistr2_static(&(info3->uni_logon_script)),
+ PDB_CHANGED)) {
+ TALLOC_FREE(sam_account);
return NT_STATUS_NO_MEMORY;
}
- if (!pdb_set_profile_path(sam_account, unistr2_static(&(info3->uni_profile_path)), PDB_CHANGED)) {
- pdb_free_sam(&sam_account);
+ if (!pdb_set_profile_path(sam_account,
+ unistr2_static(&(info3->uni_profile_path)),
+ PDB_CHANGED)) {
+ TALLOC_FREE(sam_account);
return NT_STATUS_NO_MEMORY;
}
- if (!pdb_set_homedir(sam_account, unistr2_static(&(info3->uni_home_dir)), PDB_CHANGED)) {
- pdb_free_sam(&sam_account);
+ if (!pdb_set_homedir(sam_account,
+ unistr2_static(&(info3->uni_home_dir)),
+ PDB_CHANGED)) {
+ TALLOC_FREE(sam_account);
return NT_STATUS_NO_MEMORY;
}
- if (!pdb_set_dir_drive(sam_account, unistr2_static(&(info3->uni_dir_drive)), PDB_CHANGED)) {
- pdb_free_sam(&sam_account);
+ if (!pdb_set_dir_drive(sam_account,
+ unistr2_static(&(info3->uni_dir_drive)),
+ PDB_CHANGED)) {
+ TALLOC_FREE(sam_account);
return NT_STATUS_NO_MEMORY;
}
- if (!NT_STATUS_IS_OK(nt_status = make_server_info(server_info))) {
+ if (!pdb_set_acct_ctrl(sam_account, info3->acct_flags, PDB_CHANGED)) {
+ TALLOC_FREE(sam_account);
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ result = make_server_info(NULL);
+ if (result == NULL) {
DEBUG(4, ("make_server_info failed!\n"));
- pdb_free_sam(&sam_account);
- return nt_status;
+ TALLOC_FREE(sam_account);
+ return NT_STATUS_NO_MEMORY;
}
/* save this here to _net_sam_logon() doesn't fail (it assumes a
- valid SAM_ACCOUNT) */
+ valid struct samu) */
- (*server_info)->sam_account = sam_account;
-
- (*server_info)->unix_name = smb_xstrdup(found_username);
+ result->sam_account = sam_account;
+ result->unix_name = talloc_strdup(result, found_username);
/* Fill in the unix info we found on the way */
- (*server_info)->sam_fill_level = SAM_FILL_ALL;
- (*server_info)->uid = uid;
- (*server_info)->gid = gid;
+ result->uid = uid;
+ result->gid = gid;
- /* Store the user group information in the server_info
- returned to the caller. */
-
- nt_status = get_user_groups((*server_info)->unix_name,
- uid, gid, &n_lgroupSIDs, &lgroupSIDs, &unix_groups);
-
- if ( !NT_STATUS_IS_OK(nt_status) ) {
- DEBUG(4,("get_user_groups failed\n"));
- return nt_status;
- }
-
- (*server_info)->groups = unix_groups;
- (*server_info)->n_groups = n_lgroupSIDs;
-
/* Create a 'combined' list of all SIDs we might want in the SD */
-
- all_group_SIDs = malloc(sizeof(DOM_SID) * (info3->num_groups2 +info3->num_other_sids));
-
- if (!all_group_SIDs) {
- DEBUG(0, ("malloc() failed for DOM_SID list!\n"));
- SAFE_FREE(lgroupSIDs);
- free_server_info(server_info);
- return NT_STATUS_NO_MEMORY;
- }
-#if 0 /* JERRY -- no such thing as local groups in current code */
- /* Copy the 'local' sids */
- memcpy(all_group_SIDs, lgroupSIDs, sizeof(DOM_SID) * n_lgroupSIDs);
- SAFE_FREE(lgroupSIDs);
-#endif
+ result->num_sids = 0;
+ result->sids = NULL;
/* and create (by appending rids) the 'domain' sids */
for (i = 0; i < info3->num_groups2; i++) {
-
- sid_copy(&all_group_SIDs[i], &(info3->dom_sid.sid));
-
- if (!sid_append_rid(&all_group_SIDs[i], info3->gids[i].g_rid)) {
-
- nt_status = NT_STATUS_INVALID_PARAMETER;
-
- DEBUG(3,("could not append additional group rid 0x%x\n",
- info3->gids[i].g_rid));
-
- SAFE_FREE(lgroupSIDs);
- free_server_info(server_info);
-
- return nt_status;
-
+ DOM_SID sid;
+ if (!sid_compose(&sid, &info3->dom_sid.sid,
+ info3->gids[i].g_rid)) {
+ DEBUG(3,("could not append additional group rid "
+ "0x%x\n", info3->gids[i].g_rid));
+ TALLOC_FREE(result);
+ return NT_STATUS_INVALID_PARAMETER;
}
+ add_sid_to_array(result, &sid, &result->sids,
+ &result->num_sids);
}
/* Copy 'other' sids. We need to do sid filtering here to
*/
for (i = 0; i < info3->num_other_sids; i++) {
- sid_copy(&all_group_SIDs[info3->num_groups2 + i],
- &info3->other_sids[i].sid);
+ add_sid_to_array(result, &info3->other_sids[i].sid,
+ &result->sids,
+ &result->num_sids);
}
-
- /* Where are the 'global' sids... */
- /* can the user be guest? if yes, where is it stored? */
+ result->login_server = unistr2_tdup(result,
+ &(info3->uni_logon_srv));
+
+ /* ensure we are never given NULL session keys */
- nt_status = create_nt_user_token(&user_sid, &group_sid,
- info3->num_groups2 + info3->num_other_sids,
- all_group_SIDs, False, &token);
-
- if ( !NT_STATUS_IS_OK(nt_status) ) {
- DEBUG(4,("create_nt_user_token failed\n"));
- SAFE_FREE(all_group_SIDs);
- free_server_info(server_info);
- return nt_status;
+ if (memcmp(info3->user_sess_key, zeros, sizeof(zeros)) == 0) {
+ result->user_session_key = data_blob(NULL, 0);
+ } else {
+ result->user_session_key = data_blob_talloc(
+ result, info3->user_sess_key,
+ sizeof(info3->user_sess_key));
+ }
+
+ if (memcmp(info3->lm_sess_key, zeros, 8) == 0) {
+ result->lm_session_key = data_blob(NULL, 0);
+ } else {
+ result->lm_session_key = data_blob_talloc(
+ result, info3->lm_sess_key,
+ sizeof(info3->lm_sess_key));
}
- (*server_info)->ptok = token;
+ result->was_mapped = username_was_mapped;
- SAFE_FREE(all_group_SIDs);
-
- memcpy((*server_info)->session_key, info3->user_sess_key, sizeof((*server_info)->session_key)/* 16 */);
- memcpy((*server_info)->first_8_lm_hash, info3->padding, 8);
+ *server_info = result;
return NT_STATUS_OK;
}
{
DEBUG(5,("attempting to free (and zero) a user_info structure\n"));
if (*user_info != NULL) {
- if ((*user_info)->smb_name.str) {
- DEBUG(10,("structure was created for %s\n", (*user_info)->smb_name.str));
+ if ((*user_info)->smb_name) {
+ DEBUG(10,("structure was created for %s\n",
+ (*user_info)->smb_name));
}
- SAFE_FREE((*user_info)->smb_name.str);
- SAFE_FREE((*user_info)->internal_username.str);
- SAFE_FREE((*user_info)->client_domain.str);
- SAFE_FREE((*user_info)->domain.str);
- SAFE_FREE((*user_info)->wksta_name.str);
+ SAFE_FREE((*user_info)->smb_name);
+ SAFE_FREE((*user_info)->internal_username);
+ SAFE_FREE((*user_info)->client_domain);
+ SAFE_FREE((*user_info)->domain);
+ SAFE_FREE((*user_info)->wksta_name);
data_blob_free(&(*user_info)->lm_resp);
data_blob_free(&(*user_info)->nt_resp);
- SAFE_FREE((*user_info)->interactive_password);
+ data_blob_clear_free(&(*user_info)->lm_interactive_pwd);
+ data_blob_clear_free(&(*user_info)->nt_interactive_pwd);
data_blob_clear_free(&(*user_info)->plaintext_password);
ZERO_STRUCT(**user_info);
}
SAFE_FREE(*user_info);
}
-/***************************************************************************
- Clear out a server_info struct that has been allocated
-***************************************************************************/
-
-void free_server_info(auth_serversupplied_info **server_info)
-{
- DEBUG(5,("attempting to free (and zero) a server_info structure\n"));
- if (*server_info != NULL) {
- pdb_free_sam(&(*server_info)->sam_account);
-
- /* call pam_end here, unless we know we are keeping it */
- delete_nt_token( &(*server_info)->ptok );
- SAFE_FREE((*server_info)->groups);
- SAFE_FREE((*server_info)->unix_name);
- ZERO_STRUCT(**server_info);
- }
- SAFE_FREE(*server_info);
-}
-
/***************************************************************************
Make an auth_methods struct
***************************************************************************/
BOOL make_auth_methods(struct auth_context *auth_context, auth_methods **auth_method)
{
if (!auth_context) {
- smb_panic("no auth_context supplied to make_auth_methods()!\n");
+ smb_panic("no auth_context supplied to "
+ "make_auth_methods()!\n");
}
if (!auth_method) {
- smb_panic("make_auth_methods: pointer to auth_method pointer is NULL!\n");
+ smb_panic("make_auth_methods: pointer to auth_method pointer "
+ "is NULL!\n");
}
- *auth_method = talloc(auth_context->mem_ctx, sizeof(**auth_method));
+ *auth_method = TALLOC_P(auth_context->mem_ctx, auth_methods);
if (!*auth_method) {
DEBUG(0,("make_auth_method: malloc failed!\n"));
return False;
return True;
}
-/****************************************************************************
- Delete a SID token.
-****************************************************************************/
-
-void delete_nt_token(NT_USER_TOKEN **pptoken)
-{
- if (*pptoken) {
- NT_USER_TOKEN *ptoken = *pptoken;
- SAFE_FREE( ptoken->user_sids );
- ZERO_STRUCTP(ptoken);
- }
- SAFE_FREE(*pptoken);
-}
-
/****************************************************************************
Duplicate a SID token.
****************************************************************************/
-NT_USER_TOKEN *dup_nt_token(NT_USER_TOKEN *ptoken)
+NT_USER_TOKEN *dup_nt_token(TALLOC_CTX *mem_ctx, NT_USER_TOKEN *ptoken)
{
NT_USER_TOKEN *token;
if (!ptoken)
return NULL;
- if ((token = (NT_USER_TOKEN *)malloc( sizeof(NT_USER_TOKEN) ) ) == NULL)
- return NULL;
+ token = TALLOC_P(mem_ctx, NT_USER_TOKEN);
+ if (token == NULL) {
+ DEBUG(0, ("talloc failed\n"));
+ return NULL;
+ }
- ZERO_STRUCTP(token);
+ token->user_sids = talloc_memdup(token, ptoken->user_sids,
+ sizeof(DOM_SID) * ptoken->num_sids );
- if ((token->user_sids = (DOM_SID *)memdup( ptoken->user_sids, sizeof(DOM_SID) * ptoken->num_sids )) == NULL) {
- SAFE_FREE(token);
- return NULL;
- }
+ if ((ptoken->user_sids != NULL) && (token->user_sids == NULL)) {
+ DEBUG(0, ("talloc_memdup failed\n"));
+ TALLOC_FREE(token);
+ return NULL;
+ }
- token->num_sids = ptoken->num_sids;
+ token->num_sids = ptoken->num_sids;
+
+ /* copy the privileges; don't consider failure to be critical here */
+
+ if ( !se_priv_copy( &token->privileges, &ptoken->privileges ) ) {
+ DEBUG(0,("dup_nt_token: Failure to copy SE_PRIV!. "
+ "Continuing with 0 privileges assigned.\n"));
+ }
return token;
}
-/**
- * Squash an NT_STATUS in line with security requirements.
- * In an attempt to avoid giving the whole game away when users
- * are authenticating, NT replaces both NT_STATUS_NO_SUCH_USER and
- * NT_STATUS_WRONG_PASSWORD with NT_STATUS_LOGON_FAILURE in certain situations
- * (session setups in particular).
- *
- * @param nt_status NTSTATUS input for squashing.
- * @return the 'squashed' nt_status
- **/
+/****************************************************************************
+ Check for a SID in an NT_USER_TOKEN
+****************************************************************************/
-NTSTATUS nt_status_squash(NTSTATUS nt_status)
+BOOL nt_token_check_sid ( const DOM_SID *sid, const NT_USER_TOKEN *token )
{
- if NT_STATUS_IS_OK(nt_status) {
- return nt_status;
- } else if NT_STATUS_EQUAL(nt_status, NT_STATUS_NO_SUCH_USER) {
- /* Match WinXP and don't give the game away */
- return NT_STATUS_LOGON_FAILURE;
-
- } else if NT_STATUS_EQUAL(nt_status, NT_STATUS_WRONG_PASSWORD) {
- /* Match WinXP and don't give the game away */
- return NT_STATUS_LOGON_FAILURE;
- } else {
- return nt_status;
- }
+ int i;
+
+ if ( !sid || !token )
+ return False;
+
+ for ( i=0; i<token->num_sids; i++ ) {
+ if ( sid_equal( sid, &token->user_sids[i] ) )
+ return True;
+ }
+
+ return False;
}
+BOOL nt_token_check_domain_rid( NT_USER_TOKEN *token, uint32 rid )
+{
+ DOM_SID domain_sid;
+
+ /* if we are a domain member, the get the domain SID, else for
+ a DC or standalone server, use our own SID */
+
+ if ( lp_server_role() == ROLE_DOMAIN_MEMBER ) {
+ if ( !secrets_fetch_domain_sid( lp_workgroup(),
+ &domain_sid ) ) {
+ DEBUG(1,("nt_token_check_domain_rid: Cannot lookup "
+ "SID for domain [%s]\n", lp_workgroup()));
+ return False;
+ }
+ }
+ else
+ sid_copy( &domain_sid, get_global_sam_sid() );
+
+ sid_append_rid( &domain_sid, rid );
+
+ return nt_token_check_sid( &domain_sid, token );\
+}
/**
* Verify whether or not given domain is trusted.
BOOL is_trusted_domain(const char* dom_name)
{
DOM_SID trustdom_sid;
- char *pass = NULL;
- time_t lct;
BOOL ret;
/* no trusted domains for a standalone server */
/* if we are a DC, then check for a direct trust relationships */
- if (lp_server_role() == ROLE_DOMAIN_BDC || lp_server_role() == ROLE_DOMAIN_PDC) {
+ if ( IS_DC ) {
become_root();
- ret = secrets_fetch_trusted_domain_password(dom_name, &pass, &trustdom_sid, &lct);
+ DEBUG (5,("is_trusted_domain: Checking for domain trust with "
+ "[%s]\n", dom_name ));
+ ret = secrets_fetch_trusted_domain_password(dom_name, NULL,
+ NULL, NULL);
unbecome_root();
- SAFE_FREE(pass);
if (ret)
return True;
}
else {
- /* if winbindd is not up and we are a domain member) then we need to update the
- trustdom_cache ourselves */
+ NSS_STATUS result;
+
+ /* If winbind is around, ask it */
+
+ result = wb_is_trusted_domain(dom_name);
+
+ if (result == NSS_STATUS_SUCCESS) {
+ return True;
+ }
- if ( !winbind_ping() )
- update_trustdom_cache();
+ if (result == NSS_STATUS_NOTFOUND) {
+ /* winbind could not find the domain */
+ return False;
+ }
+
+ /* The only other possible result is that winbind is not up
+ and running. We need to update the trustdom_cache
+ ourselves */
+
+ update_trustdom_cache();
}
/* now the trustdom cache should be available a DC could still
git.samba.org / ira / wip.git / blobdiff